Hi Thierry,
There are a few buttons at the top left. Look for the ones with 'chain links'. The first one is for viewing pictures of ships from Shipspotting.com and the second one is for MarineTraffic.com.
Click on the ship you are tracking and once selected, click on the 'chain link' and it will open a window with Shipspotting.com search index.
Hope this helps.
Steve Geronazzo